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"All of us synth doods know about the Chroma. Amazingly versatile architecture, the closest thing you can get to the ARP 2500 modular sound, beautiful weighted keyboard, and a nice flat top to stack other gear on as well.
Over the years, the Chroma has got some negative press due to some original design choices. Luckily, the Chroma is without a doubt the most supported vintage synth on the planet. Chris Ryan's
www.rhodeschroma.com site has provided owners and potential owners help and support for many years. In addition, dedicated users and techs have come up with some essential upgrades over the years to make the Chroma even better.
This Chroma has all the updates plus more.
MIDI CC+ CPU board - replaces original CPU board (and leak-prone AA batteries) and adds full MIDI support.
SPSU - smaller, lighter, more stable universal power supply
CPS - polyphonic pressure sensor kit
In addition, using the interface provided by the CC+ board and latest OS, I added an LCD display to show you what you're editing!
Face it, one of the knocks against the Chroma is that the complexity of the synth engine is somewhat hidden by the very basic 2 segment LED displays and touch panel buttons. Programming it required you to keep the manual or at least the large parameter chart handy. No more!
Take a look at the display in the picture - you can see you are editing parameter 37 (LP/HP filter), the current value (LP), and all the modulations being applied to the parameter. Excellent!
So, at this point, you have a polyphonic pressure generating analog polysynth with an easy to use interface, stable power, and amazing MIDI capabilities. Where else can you find this? Maybe a Yamaha CS-80 with a MIDI retrofit. Good luck with that one though. More expensive, much heavier, and prone to breakdowns.
In addition, this Chroma has the dual footpedal, complete set of docs (I found the Performance manual after taking the pix), and 2 voice cards. At least one of the cards works (but doesn't pass auto-tune) and both cards are fully populated so you have backups of the CEMs and other stuff. There's a great tech in Canada (JL at Cantos) that fixes up cards for a reasonable price, so if you wanted working spares, you could send them off to him.
You won't find a Chroma with all these upgrades and extras anywhere else, so if you've been on the fence, now is the time to act."
via this auction 
via this auction
via this auction
Organ via this auction
"All of us synth doods know about the Chroma. Amazingly versatile architecture, the closest thing you can get to the ARP 2500 modular sound, beautiful weighted keyboard, and a nice flat top to stack other gear on as well.
Over the years, the Chroma has got some negative press due to some original design choices. Luckily, the Chroma is without a doubt the most supported vintage synth on the planet. Chris Ryan's www.rhodeschroma.com site has provided owners and potential owners help and support for many years. In addition, dedicated users and techs have come up with some essential upgrades over the years to make the Chroma even better.
This Chroma has all the updates plus more.
MIDI CC+ CPU board - replaces original CPU board (and leak-prone AA batteries) and adds full MIDI support.
SPSU - smaller, lighter, more stable universal power supply
Free Sonification Compilation and Ableton Live Instrument. You might remember Micah's project from this video back on March 2, 2010.
